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Sept 20 1932- E. F. BR1TTEN,VJR 1,877,801

CALGULATING MACHINE Filed May 29, 1930. 13 Sheets-Sheet l '46 DWI @hmmmBy Sept., 2.0, 1932.

E. F. BRITTEN, JR

CALCULATING MACHINE f Filed May 29, 1950 13 Sheets-Sheet 2 Sept. 20,1932. E. F. BRlT-TEN, JR

CALCULATlNG MACHINE Filed May 2,9, 1950 IS'ShSetS-Sheet 3 rim? NT-ILMnvenor f Alforney Sept. Z0, 1932. E. F. BRITTEN, JR 1,877,89

CALCULATING MACHINE Filed May 29, 1930 13 sheets-Sheet 4 Sept. 20, 1932.E. F. BR1TTEN. JR

CALCULATING MACHINE Filed May 29, 19:50

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Sept. 20, 1932.

- E. F. BRITTEN, JR

Filed May 29, 1930 l115 Sheets-Sheet ll Sept 20, 1932 E. F. BRITTEN, JR

CALCULATING MACHINE Filed May 29, 193@ 15 Sheets-Shee l2 A Harney ByQISept. 20, 1932. E. F. BRlTTEN, JR

K CALCULATING MACHINE Filed May 29, 1950 13 Sheets-Sheet 1.3

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Patented Sept. 20, 1932 UNITED vSTATES PATENT OFFICE EDWIN F. BEITTEN,.m or MAPLEwooD, NEW JERSEY, AssIGNoE mo MONROE CALCU- chines andprincipal object is to mechanismfwhereby calculations may be op- -:forholding VnA'rINc, MACHINE COMPANY, or

WARE

ORANGE, NEW JERSEY, A. CORPORATION OF DELA@r cALcULA'rING MACHINEApplication med lay 29,1930. Serial I'Wo. 457,004.

This invention relates to calculating maparticularly tomachines adaptedBritish currency,and the provide a 7selecting for calculations intionally performed by either fractional, decimal equivalent, or straightdecimal methods at the will of the operator.

Another objectl of the invention is toprovide a shiftable selectingmechanism wherein the same keys are used for both decimal and decimalequivalent calculations.

Another object is to provide a means to release 'le depressed keysbeforejtheselecting mechanism is moved from decimal position to decimalequivalent position or vice versa. y

i Another object is to provide detent means the selecting mechanism whenshifted to the desired'position.

A further object of the invention is to pro` 'I vide a calculatingmachine, adapted for British currency calculations," with means/,to prefyvent the product wheels frombeing `accidentally shifted from straightdecimal or dcci- "s of thekeyboard, indicating keys to be ignored malequivalent to fractional position, or out of .fractional position, -oncethe machine lias/ been set. i v 1 Other objects will ap ar from the'follow- `ing description and j appended claims. I attain allof-theseobjects by; the means shown ing drawings, in which Fig. 1 is aVsomewhat' diagrammatic top plan view of a machine embodying theinvention. i

Fig. 2 is a right-hand Vside elevation with parts broken away forclearness. g Fig. 3 is a vertical sectionaly view taken substantially online 3--3 of Fig. 1. j Fig. 4 is a vertical sectional vview takensubstantially on line 4 4 of Fig. 1.

Fig. 5 is a vertical sectional view taken substantially on line 5 5 ofFig. 1. Fig. 6 is a detail perspective view of the pence numeral wheel.

w11 lie/pointed out in the` in the accompanys Figi? is a detailperspective view of the yunits of the shillings numeral wheel.

Fig. 8 is a detail perspective view of the tens of shillings numeralwheeh Fig. 9 is a detail perspective View of a decimal numeral wheel.

'Fig. 10 is a detail pence selector gears. j j l Fig. 1l is a detailperspective view of a l portiony of the key mechanism.

Fig. 12 isa fragmentary vertical sectional lView taken Fig. 5. i f

substantially on line 12-12 of perspective view of the Fig. 13 is aldetail perspective view of a pori tion of the key mechanism used in thedecimal equivalent column.

Fig. 14 is a fragmentaryvertical sectional viewj taken through the 0 keyof the shiftable column of keys.- l

F ig15 isa fragmentary top plan View of certain selectorbails andassociated parts.

,-Fgigfl "is affragmentary detail view cfa lpiartof tli key mechanism. e

Fignlf'? is a diagrammatic top plan View of when calculations in Britishcurrency by the decimal equivalent methodare being effected.

Fig. 18:-\is"a,s'imilai view indicating keys ignored`when working inBritish Currency by fractions. f A

Fig. 19 is a similar view indicating the keys to be ignored wheny usingthe machine for straight decimal calculation.

Fig. 20 is a fragmentary top plan view of a machine embodying-amodiiieddform of the invention. a i. Fig. 21 is a fragmentary right-handside elevation of the form shown in Fig. 19, the casing being brokenaway for clearness.

Fig. 22 is an enlarged fragmentary vertical sectional view taken justinside the right-hand side frame showing the modified form more clearly.

Fig. 23 is a fragmentary vertical sectlon lfied form of meansdesignatesthe casin taken through the bail shifting plate of themodified form. i A

Fig. 24 is a detail perspective of the modifor shifting the bails in thesecond, third, fourth and fifth columns from the right.

Like characters of reference refer to like parts in all views.

Before describing the invention in detail, it may be helpful to mentionthat by Way of illustrating the application'of my invention, I havechosen to show the same as incorporated in a calculating machine of thewell-known Monroe construction, although this is to be considered asmerely illustrative, the invention being applicable to machines ofvarious types. 1 Y

The general construction and operation of the Monroe type of machine isset forth in the U. S. Patent No. 1,566,650 issued to George C. Chase,December 22, 1925, asmodified by Patent No. 1,664,661 issued to GeorgeC. Chase entitled Full cycle positioning mechanism, and is `Well knownin the art, having been incorporated in a great number of machinesplaced on` the market and in wide general use.

It may be well at this point to indicate the intended Vmeanings ofcertain phrases used in this specification. The term fraction orfractional method or kindred expressions as used herein refers not tovulgar fractions as might be supposed, but to dealing with monetaryvalues not based on a decimal system. The term decimal equivalent meansthe conversion of values not based on a decimal system to correspondingdecimal system values. Thus 10d.+4d.==1s. 2d. is considered as a ifractional system addition; and by changing the problem into decimalequivalents we would have .04167+ .01667,--.05834. p

[Referringto the 'drawings-indetail, 30 and 31'the side frames of themachine: f A eyboard is shown at 32 and", uides a plurality ofmanipulative key mem rs as follows: fraction keys 33 used only infractionalcalculations; digit-setting keys 34 and zero ke s 35, a columnof decimal equivalent setting eys 36, and zero key 37,

i keyboard clearlng key 38, repeat key 39, nonrepeat key40,add-operating key or plus bar 41, subtract`-operati1ig 'key or minus bar42, division lever` 43,l and multiplying keys 45. A driving motor yisshown at 46, a handoperating crank at 47 and a carriage at 48. Thecarriage 48 carries a plurality of accumulator dials as follows; a penceaccumulator dial 49, a units of shillings accumulator dial 50, a tens ofshillings accumulator dial 51, and a plurality of standard ten-pointaccumulator dials 52. A counter dial 53 registers only when the carriageis in the position shown in Fig. 1; and counters 54, being of thenineteen point type, have no carrying mechanism and each bears theninelsignificant digits running in reverse directions from a commonzero, one set of significant digits being colored differently from theother. One or more sets of ten-point counters might be usedalternatively and if ten-point counters VWere used, no special dial 53would be necessary, since with the ten point arrangement, a dial in thisposition Would carry over to the successive left-hand dials.

The motor driving means is illustrated substantially the same as thatdisclosed in the Patent No. 1,566,650 issued to George C. Chase, motor46 having connections with a planetary gear mechanism, the gear membersof which normally rotate idly but may be selectively arrested by meansof a reversing clutch lever (not shown in the drawings) whereby thethird member of the differential connected with shaft 55, is drivenforward or reversely, respectively. Y Motor operation is controlled bymeans of the add' key 41, and the subtract key 42 as fully explained inPatent No. 1,566,650, hereinbefore referred to.

method (Figs. 1, 2, 4, 6 to 12, 15 and 18.) To perform calculations inBritish currency by the fractional method, the carriage 48 must be movedto the extreme left position as shown in Fig. 1, to bring the penceaccumulator dial 49 in alignment with the column of pence or fractionkeys 33.

' The three right hand dials are adapted for fractional calculations inBritish currency and shown to be of a different color from the rest ofthe dials. The pence dial 49, Figures 1, 4 and 6 is provided with oneset of twelve numbers, from 0 to 11 inclusive and the gear 56 attachedthereto has twelve teeth. This gear is provided with one carry trippingpin 57 clearly shown in Fig. 6. The units of shillings dial 50 isprovided ywith one set of ten digits from 0 to 9 inclusive, and theattached gear 58 has ten teeth and one carry tripping lpin 59, Fig. 7the same as the accumulator dia-ls 52 shown in Fig. 9, except in color.The tens of shillings dial 51 (the third dial from the right), Figs. 1and 8 is provided with five ls equally spaced on the face of the dialwhich leaves a blank space therebetween and the attached gear 60 has tenteeth and five carry pins 61. The dials 52 to the left of these fractiondials are as shown in Fig. 9, the construction being that of the WellknownA Monroe ten-point accumulator dials. The carry mechanism, asdescribed in abovementioned patents, will advance the next higher dialone step when a carry tripping pin is turned to carry position.

As the pence numeral dial 49 travelsI from 1l t0 L0 the carry pin 57operates the tens from l `to enter pounds, the accumulator dialstherewith as described.

n forming fractional calculations. umns of keys to the left of thecolumn of carry mechanism, described in Patent No.' 1,566,650, whichadvances the next dial 50, representing the units of shillings, one stepupon each revolution of the pence dial. l As the units of shillingsldial 50 travels from 9 to 0the carry pin 59 operates the tens carrymechanism to advance the tens of shill-f ing dial 51 one step and one ofthe lsf 1s brought into alignment with the sight opening. Upon the nextrevolution of the umts of shillings .dial and a carry into the tens ofshillings'dial, thel tens ofV shillings dial 51 1s turned to show ablank, and while turning to a blank, one of the carry tripping pins 61 oerates the carry mechanism and advances tlie dial to the left, one step,which in this form of calculation would rep` resent one pound sterling.

The keys in the diagrammatic top plan view of Fig. 18 show the oes to bedepressed shillings, and pence in to which are alignedl The keys crossedoff in this ligure arel to be ignored while per- The colpence keys andthe l key which represents tens of shillings in the third column are ofa different color to enable `the operator to select the units "and tensof shillings morev readily.

n By referring to the diagrammatic top plan vlew Fig. `18 one canreadily see and understand the keys to beused and the ones to be ignoredwhile performing calculations by fractions. The pence keys 33' includethe ten digit keysfand a 10 and an 11 key, the last twoofi which actupona set of selector bails 62 and 63, which 'in 4turn yshift selectorgears 64 and 65, respectively', to register 'the number represented bythe key depressed, by turningyan intermediatef gear'166, which is inconstant'y mesh with the gear 56 on the, dial, ythe required number ofsteps.` The bail 62 is provided with diverging lugs in sets of threes,(while the bail `\63 is provided with two sets of lugs each setextendingat a different angle. The bail 62 may ,move` one," two or threesteps and the bail V63 may move either oneor two steps, according totheselecting gearl section therespective bail moves into operativeposition. Theselecting gear 64 has three sections 67, 68 and 69 formedwith one, two and` three teeth respectively, and the gear is moved bythe depression of the keys 1, 5 and 9, to alignsection 6.7 ,with gear66,and it is Imovedlby'keys 2, 6 and`10 to align section 68 with gear66, andby keys 3. 7 and 11to align section 69 withfgearf66', whereby`one, two or three teeth will be brought into position to engage theintermediate gear 66 to advance or retract the dial 49. The selectorgear 65 actuated bythe selecting bail 63 comprises two sections 70 andforward from sa;

strike" to the right maining selector gears beingA the same `as E. E.Phinney 011 December 6, 1921.

The intermediate gear 66 "has fourteen teeth, the same as all ate gears72 to the left thereof.

described in the Patent 1,399,652 granted/to To bring the manipulativekey stems for A..

the .10 and 11 keys' of the right-hand 'column within the limits of theselector bails,

I provide an arm 73 extending .forwardly from ythe vertical portion 7 4of the 10 This arm 73 'iskey.

in the edge of a short stem 77 arranged forward of the stem of the keyis provided with two vertical elements 78 for operating the latter,which is arranged in rear of the stem of the 9 key. The upper portion ofthe two elements 78 merge into horizontal plate 80 which is providedwith a vertical bent portion through the keyboard 11 key button. L Y DueKto the spacing of the 'two stems 77 and y7 9 with relation to the stemlofthe 9 key, the a9, 10 in raised position the key stems, ,and held up'by springs 83 attached to a stationary pin `84 extending frame andcarrying the as shown in Figsl 3, 4 and 16. v f hen performingcalculations by fractions *it'isfneeessary to keep the dial f49in'vertical `alignment with thecolumns of pence xkeys 33Jand tolpreventaccidental displaceprovided with anger 75 at its forward end to extendinto a notch 7 6 e 81, Fig. 11 extending ,stationary cross frame 85 ofthe other intermedi- 9 key. The 11 l y and 1.,11 keys are held f' bylclips 82, attached to ment ofthe carriage. I ,provide acarriagerposititming bridge 86-rigidly mounted ony the keyboard 32,insucha position that a p1n p87," projecting from the carriage willcarriage is work.. ,The to prevent inr proper position for fractionalheight ofthe bridge is sufficient any movement of the carriage carriageshifting knob 88.` The length vof (the 'leftlSide of the bridge when theby the turning of the Well known the bridge is sueient to'fhold thecarriage v in 'its ineffective Vraised position while being shifted twospaces, `and such shifting must be done by direct manipulation of thecarriage.

the accumulator dials by the turningofthe.

Amounts set up o n the keyboard by the i Y a gear 91.

= It will, of course,

selector shaft 89 and theshaft 55 on which the tens carry members aremounted.

The shaft 5,5 may be driven from4 the motor 46 by being connected to themotoi` shaft upon depression of the plus bar 41 or minus bar 42 as iswell known in the art. A gear 90 is secured to the shaft 55 and mesheswith The gear 91 meshes with a third gear 92 which may be optionallyoperated hy the hand crank. These three gears 90, 91 and 92 have a1-to-1 ratio so that rotation of either gear 90 or gear 92 causesconcomitant rotation "of gearl 91.

ear 91 is an elliptical gear 93 which meshes with an elliptical gear 94secured to the lector shaft 89, so that while the tens carry shaft 55 istraveling at a constant speed ratio,

the selector shaft 89 is driven at a variable rate of speed.

British currency by the decimal lequivalent method.

(Figs. 1, 5 and 11 to 16 inclusive.) To setthe machine to performcalculations by the decimal equivalent method, the carriage 48 must bemoved two spaces to the right, to align the right hand'one of theaccumulator dials 52 with the second column of keys from the right-handside of the machine,` and must be moved manually from thefraction"position previously explained,

.as the carriage shifting knob 88' will not raise `the front of thecarriage high enough to permit the pin V87 to clear the bridge 86. beunderstood that the carriage may be moved freely to all positions on theright-hand side of the bridge.

The three right hand columns of keys are not used in performingcalculations by the decimal equivalent method as clearly shown .inthediagrammatio-'top plan view Fig. 17, although theselector'bails ofthe second and third columnfromgthe right, are used to set up the fourthandr fifth places of the kdecimalfe'quivalent. For this purpose` I haveprovided the lower ends of the keys 36 in the y fourth columnfrom theright, with cross, or

35 on end frames cam bars 9 5 rigidly attached thereto butspacedtherefrom so that the bars will, as clearly shown in Figs. 5 and13, register with the recesses between the lugsl on the selecting'bailsof the second, third, fourth and fifth columns from right, whenthemachine is used for straightdecimal calculations or fractional work.Therefore, preparatory to doing decimal equivalent work, this fourthcolumn of keys must he moved toward the front of the machine to bringthe cam hars 95 over the extra lugs provided on the selecting hailsoperable by the bars, as shown in Figs. 5 and 15. To shift the fourthcolumn I provide separate upper and lower key guide plates 96 and 97,rigidly mounted 98 and 99, and guided in Secured to .particular columngrooves 100 provided on the keyboard 32; the lower plate is held withinthe plane of the lower keyboard frame 101, by a plate 102 attached toand slidable with the lower plate 97. The outer edges of the plate 102are turned down at right angles and provided with .grooves for guidingthe outer ends of the cam bars 95. This column of keys ,36 and 37 slidesa distance equal to the space between the centers of the lower end of`the key stem and the attached cam bar 95and is operated by amanipulating handle 103 attached to and extending from the front end ofthe upper plate 96.`

To prevent accidental shifting of this column of keys, I provide thestem of the zero key 37 with a forwardly extending pin 104 provided withreduced portions or notches 105 and 106 which engage a keeper 107, fixedto the edges of the stationary keyboard 32, as shown in Figs. 5, 12, and13. IVhen the machine is used as a decimal equivalent machine the notch106 of the pin 104 is locked in the small portion of a key-hole slotformed in the keeper 107, and the column of keys cannot be returned todecimal or fractional position until the zero key 37 is depressed todisengage the pin 104 from the key-hole slot of the keeper 107, whichcauses any key in this that stands in depressed position to be released.Vhen the column of keys 36 and 37 has been moved to decimal orfractional position any numeral key depressed, will release the zerokey, which is then raised by its spring, so that the notch 105 willengage the key-hole slot of the keeper 107 and lock the column in rearposition.

The construction of the 10 and 11 key 36 in this column is identicallythe same as that of the corresponding keys for the pence fraction` keys33 except for the addition of a cam har'95 to each of the stems 77 andWith theA fourth column of keys from the right, moved to decimalequivalent position as shown in Fig. 17, the cross bars 95, on the lowerends of these keys will be in position to engage the added lugs on thesecond, third, fourth and fifth sets of selector hails from the right.The selector hails of these sets are indicated in Fig. 15 by thereference characters A and B, A indicating the 4vside hails and B the-side hails of these sets. The usual lugs have been reduced in width andthe added lugs are shown directly opposite the digits 1-9 between thehails and which indicate the values set up by the respective lugs. Forexample, should the 1.key' of the column of keys 36 be depressed. thesignificant digits of .00417 (decimal equivalent of one penny), will beset up by the first second and third sets of hails A and B. In Fig. 15,the decimal equivalent values of 1 to 11 pence are indicated by thesmall numerals between the sets of selector hails A and B. Largenumerals to theleft of all the bails indicate the usual ninedigitalvalues and similar numerals at the right-,indicate the values necessaryfor registration in pence.

Inspection of Fig. l5 cate that depression of the keys 36 will set upthe following decimal equivalent values:

Key Decimal equivalent 1 .00417 2 .00833 3 .01250 4 .01667 5 .02083 6.02500 7 .02917 8 .03333 9 L .03750 l0 .04167 11 .04583 The added lugson the several bails A and B are formed so as to be moved by therespective cam bars 95 the necessary distances to effect registration ofthe significant portions of the above table of equivalents, such tablehaving been based on lVhenthe cam bars 95 are in their operativeposition (i. e. when the keys 36-37 are forward), the usual cams on thelower ends of the key stems proper will be in alignment with recessesbetween the lugs so that when the keys are depressed, the usual cams ofkeys 36 will have no effect tive bails A and B.

The selector gears 108, and intermediate gears 72, from the secondcolumn from the right to the left of the machine are identical, andoperate as described in Patent 1,566,650, and the accumulator dials 52are all of the usual ten point Monroe type, as illustrated in Fig. 9.

In setting up the decimal equivalents of shillings, it will be notedthat multiples of five will be set (there being twenty shillings in apound sterling). Referring to Fig. 17, it will be seen that shillingsare to be set up on the two rows of keys to the left of the movable keys36, and small numerals kare placed on certain of these keys, the 5 keyof the right hand row having a small l v1nscribed on it and the keys ofthe left hand one of these rows having small numerals 2 to 18 (evennumbers only) inscribed thereon. When it is desired to set up an evennumber l of shillings, the key bearing this small number is depressed;but when it is desired to set up an odd vnumber of shillings, the nextlower even number key is set and also the key bearing the small 1 in theright hand one of these columns'is set. It will, therefore, be notedthat as the 5 key (bearing'the small 1) is the only key of this row everset for will therefore inditill upon the respec-I f decimal equivalentWork, the bail B associ-4 ated With this row will be the only one setdirectly from this row 0f keys in decimal equivalent work, and as thedecimal equivalent of pence never requires a setting of more than 4 bythe bails of this row, the bail A yof this set will be the only one everoperated in setting up decimal equivalents of pence, so that there willnever be an interference or double control of either bail associatedwith this row.

Straight decimal calculations (Figs. 1, 2, 3, 4 and 19.) When using themachine for straight decimal work, in addition, subtraction,multiplication and division, the pin 87 must be'kept on the right handsideof the bridge 86, Fig. 1, and the keys in the fourth column from theright-hand side of the machine must be in decimal or rear position, Fig.4, with the notch 105 of pin 104 locked in the key-holeslot in thekeeper 107 to insure horizontal alignment of the shiftable column ofkeys 36 with the rest of the keys of the keyboard. The 10 and keys'ofthe shiftable column of keys 36 are ignored'as well as the keys of thefirst column on right hand side of the machine'as shown crossed off inFig. 18. With parts in this position the machine may be used for straiht decimal. calculations in the usual wellnown manner.

Modified form (Figs. 20 to 24 inclusive.) A modifiedy orm 'of means forchanging the machine from `condition for fractional'or straight decimalcalculations to condition for decimal equivalent work and vice versa isshown in Figs. 20 to 24. In this form of the invention, certain sets ofselector bails are moved with respect to their coacting columns of keysto 'l effect such change. The keys 36 or those in the fourth column fromthe right-hand sidel of the machine remain stationary so that the camends of the keystems and the cross or cam bars 95 remain always in thesame vertical plane, as shown in Fig. 22. The selector bails A and B ofthe second, third, fourth and fifth columns from the right-hand side ofthe machine slide on their pivot pins 109 toward the rear ofthe machinein changing from frac-tional or straight decimal calculations to decimalequivalent calculations.

To shift the four sets of bails A and B, I provide av lever-110 pivotedto the right hand side frame 31 at 111, with its free or upper end projectingabove the keyboard 32 through a slot 112 to provide a maniyulating handle 113, Figs. 20, 21, 22 and 24. uring the first part oftravel of the lever 110 in either direction, a double cam 114 willlforce one end of a bell crank lever 115 downward by riding on a roller116 on the free end of said lever 115. This lever 115 is thekeyboard-clear permit ,operation of the keyboard clear lever 115 priorto shifting of the bails A and B by tlie high part of member 120. Bymoving finger piece 113 forward, the bails A and B are .adjusted so thatthe usual cams of the key stems will cooperate with the usual lugs ofbails A and B and ordinary decimal calculations may be performed. Bymoving finger piece 113 rearward, the bails A and B are adjusted so thatthe decimalequivalent cross or cam bars 95 become effective and decimalequivalent calculations may be per.- formed.

While I have vdescribed what I consider to be the most desirableembodiments of my invention for the purpose set forth, it is obviousthat changes in form could be made without departing from the spirit'ofmy invention, and I, therefore, do not limit myself to the exact detailsherein shown and described, or to anything vless than the whole of myinvention as hereinafter particularly pointed out in the appendedclaims.

I claim:

1. In a calculating machine, the combination with accumulators andactuating devices therefor, of selecting bails including two sets ofvalue lugs and operable to control certain of said actuating devices, aplurality of keys, a pair of operating elements operable by each of saidkeys and operatively associated with said lugs, and means for shiftingsaid keys and elements as a unit to position to coact with either ofsaid sets of lugs at the will of the operator.

2. In a calculating machine, the combina-- tion with accumulators andactuating devices therefor, of selecting bails including two sets ofvalue lugs and operable to control certain of said actuating devices, aplurality of keys, a pair of operating elements operable by each of saidkeys and operatively associated with said lugs, and means shifting saidlugs and elements with relation to each other for bringing said keysinto operative relation to either of said sets of lugs at the will ofthe operator.

3. In a calculating machine, the combination with accumulators andactuating devices therefor, of a plurality of rows of settable digitkeys, a plurality of controlling devices, each controlling device beingoperatively associated with a respective actuating device forcontrolling the actuating of sai accumsetting of a key ,the digit keysAshifting one of said rows of keys from non Lwith the restoring key of afor.

ulators and normally controllable by the keys of a respective row ofdigit keys, means for shifting one of said rows of keys from normalposition so as to bring the same into effective relationship with apluralit of said controlling devices, and means operale upon to locksaid row of keys against manual displacement from either position towhich it is moved.

4. In a calculating machine, tion with accumulators and actuatin vicestherefor, of a plurality of rows o keys each comprising settable ,digitkeys-and restoring keys, a plurality of controlling devices, eachcontrolling device being operatively associated with a respectiveactuating device for controlling the actuatin of said accumulatore andnormally contro lable by of a respective row, means for the combinamalposition so as to bring the same into effective relationship with aplurality of said controlling devices, and means cooperating shiftablerow and operable upon setting of a key to lock said row of keys againstmanual displacement from either osition to which it is moved.

5. In a ca culating machine the combination with registering means and aplurality of actuators therefor, of an element for controlling a singleone of said actuators to --eifect registering of a certain value, anelement for controlling a plurality of said actuators simultaneously asto the values registered thereby, a single key for o eratin" both ofsaid elements and means or rendering eitfier of said elements effectiveat the will of the operator.

Signed at Orange in the county of Essex and State of New llersey this26th day of May A. D. 1930. 4 Y

- EDWIN F. BRITTEN, JR.

des

